1. Prepared by: Jerry D. Taay 2. Evolutionary Perspective Octopuses, squid and cuttlefish are some of the invertebrate world’s most adept predators. Predatory lifestyle…

1. INVERTEBRATES 2. Invertebrates Animals without backbones 97% of all animal species 3. InvertebratesPhylum AnnelidaPhylum PoriferaPhylum MolluskaPhylum CnidariaPhylum…

Slide 1Aquatic Macroinvertebrates Slide 2 What are Aquatic Macroinvertebrates? Macroinvertebrates are small organisms that do not have a backbone. A great diversity of types.…

Slide 1 Gastropods and Pelecypods How to make a living inside your shell Slide 2 Phylum Mollusca Ancient Group of Animals Ancient Group of Animals Second “largest” animal…

Slide 1 STOP 6: PHYLUM MOLLUSCA Slide 2 Characteristics ◦ Soft-bodied invertebrate covered with protective mantle that may or may not form a hard, calcium carbonate shell…

Slide 1 Phylum Mollusca Second largest animal phylum (> 100,000 species) Oysters, snails, clams, octopus, squid Two unifying characteristics –External calcium carbonate…

Slide 1 Phylum Arthropoda The Arthropods Arthro = jointed, Pod = foot Source Slide 2 Largest animal phylum containing more than 3x the number of all other animal species…

Basic biology and classification of marine invertebrates -Metazoan animal origins: 700 million to 1.4 billion ybp -Cambrian explosion: 600 mybp -evolution is not progressive,…

Geologic history of the Red River Basin Aquatic Macroinvertebrates What are Aquatic Macroinvertebrates? Macroinvertebrates are small organisms that do not have a backbone.…

Phylum Mollusca Chapter 13: Phylum Mollusca pp. 329-334 Biology fun facts of the day: Experts claim that about 1,000 oysters must be opened in order to find one usable pearl!…